1880. j 411 



Stated Meeting, January 16, 1880. 

 Present, 16 members. 

 President, Mr. Fraley, in the Chair. 



A letter of acknowledgment was received from the R. 

 Academia dei Lincei, Dec. 16, 1879 (102, 103). 



Letters of envoy were received from the U. S. Department 

 of the Interior, Jan. 2 ; the U. S. Naval Observatory, Jan. 

 16 ; and Dr. B. A. Gould, Director of the Argentine Ob- 

 servatory at Cordova, S. A. 



Donations for the Library were received from the Geo- 

 logical Survey of Japan ; the Russian Academy ; the 

 Zoologischer Anzeiger ; M. Delesse, and the Revue Poli- 

 tique of Paris; London Nature; the Museum of Compara- 

 tive Zoology at Cambridge ; the Canadian Naturalist ; Har- 

 vard Observatory ; Silliman's Journal ; the Scientific 

 American ; the Numismatic Society ; the Journal of Phar- 

 macy ; the Cincinnati Natural History Society ; the Botani- 

 cal Gazette ; the Bureau of Education ; the Geological Sur- 

 vey of the Territories; the Fish Commissioners; the De- 

 partment of the Interior ; General Wheeler ; and the Mexi- 

 can Meteorological Bureau. 



The death of Dr. Jacob Bigelow, at Boston, Jan. 10, 

 1879, aged 92, was reported. 



Mr. Phillips read an elaborate description of his latin 

 copy of the curious Cosmography of Sebastian Munster, 

 who was born 1489, and died at Basle, circa 1552. 



Mr. Hall exhibited his provisionally colored map of 

 south-eastern Pennsylvania, from Trenton westward to and 

 across the Susquehanna River, and discussed the age of the 

 Philadelphia rocks on his hypothesis of their metamor- 

 phism, considering them Silurian, and perhaps in part Devo- 

 nian. 



Mr. Rand, Prof. Frazer and Mr. Lesley took part in the 



